Engraving-machine for glassware.



No. 645,333. Patented Mar. l3, I900.

G. SCHIFFBAUER.

ENGRAVING MACHINE FOR GLASSWARE.

(Application filed May 25 1899,) (No Model.) 2 SheetsSheet-l anwznfoz No. 645,333. Paiented Mar. l3, I900. s. SCHIFFBAUER. ENGRAVING MACHINE FORBLASSWABE.

(Application filed May 25, 1899.)

2 Sheets-Sheet 2,

(No Model.

26 -26 7 i 5/ l 1 2 z; 25 20 I l2 0 2:4 25 I 36 23 24 22 3a 22 2/ 54 J4 2/ UNITED STATES PATENT OFFICE,

GUSTAV SGHIFFBAUER, OF FAIRMONT, WEST VIRGINIA.

ENGRAVING-MACHINE FOR GLASSWARTE;

SPECIFICATION forming part of Letters Patent No. 645,333, dated Man. 13, loco;

Application .filed May 25, 1899.

TodZZ whom it may concern:

Be it known that I, GUSTAV SOHIFFBAUER, a citizen of the United States, residing at Fairmont, in the county of Marion and State of West Virginia, have invented certain new and useful Improvements in Glass-Engraving Machines; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to glass-engravin g machines, and more particularly to that class of needle engraving-machines employed for decorating tumblers and similar articles; and the object is to provide a simple, inexpensive, and effective machine for expeditiously performing this work.

To this end the invention consists in the construction, combination, and arrangement of the several elements of the machine, as will be hereinafter more fully described, and particularly pointed out in the claim.

In the accompanying drawings the same reference characters indicate the same parts of the invention.

Figure 1 is a perspective view of a glasstumbler-engraving machine embodying my invention. Fig. 2 is a vertical longitudinal section of the same. Fig. 3 is a detail view showing the manner of decorating the bottom of a tumbler. Fig. at is a detail view of one set of the needle-operating train of gearwheels, and Figs. 5 and 6 are minor detail views.

1 denotes a circular table provided with the usual supporting-legs 2 2, and the table is formed with radial slots 3 3 and 3' 3 to receive the adjustable standards 4: 4, the lower ends of which are screw-threaded, as shown, to receive the clamping-nuts 5 5, by means of which the standards are both vertically and horizontally adjustable in the table-bed.

6 denotes a vertical bearing formed in the center of the table, and its upper edge 7 is conical in form to receive the correspondingly-formed collar 8, adjustably secured on the shaft 9 by means of the set-screw 10.

12 denotes the tumbler-chuck fixed on the upper end of the shaft 9, which carries the tumbler.

13 denotes a worm-gear fixed on the shaft 9,

seria1No.718,205. mamas.)

which meshes with a worm-screw 14, fixed on the horizontal driving-shaft 15, journaled in suitable bearings 16 16, fixed to the table-bed.

Referring to the standards 4 4, both are identical in construction, and therefore the description of one will answer for both.

17 denotes aspur-gear adjustably mounted on the shaft 15 by means of the set-screw 18, and it meshes with an intermediate gear 19, mounted on a stud 20, adjustably secured in the slotted arm 21, mounted on the horizontal shaft 22, journaled in the bearing-sleeve 23, formed integral with the standard 4, and this shaft 22 carries a spur-gear 24, which meshes with an intermediate gear 25, journaled on the stud-shaft 26, adj ustably mount= ed in the slotted arm 27, mounted on the shaft 28, journaled in the standard 4. This shaft 28 is connected by the universal joint 29 with the needle-shaft 30, which is journaled in the segmental plate 31, which is mounted in the pivot-screws 32 32 in the parallel arms 33 33, formed on the standard.

The inner end of the shaft 22 is provided with a face-plate 34, which carries an eccentric wrist-pin 35, from which an arm 36 extends to the outer end of the segmental plate 31, and the needle-shaft is provided with a chuck 37, which carries the eccentric removable and exchangeable needle-points used for etching or marking the surface of the tumbler.

15 denotes a second driving-shaft mounted in the bearings 16 16 and extending parallel with the slots 3 3, so that four sets of standards may be simultaneously employed to engrave the tumbler at the same time.

In Fig. 3 1 have shown the manner of etching or engraving the bottom of a tumbler when desired, the tumblerbeing carried by one needle-shaft and the engraving-tool on the other being brought in contact with the bottom of the tumbler, as shown, to produce the desired eifect.

The accompanying drawings show my invention in the best form now known to me; but many changes in the details might be made within the skill of a good mechanic without departing from the spirit of my invention as set forth in the claim at the end of this specification.

Having thus fully described my invention,

Letters Patent, is

In a glass-engraving machine, in combination, the radially-slotted table 1, the vertical axial bearing 6; the shaft 9 and collar 8 journaled in said bearing, the worm-gear 13 mounted on said shaft 9; the horizontal shaft 15, the Worm-screw fixed on said shaft andin mesh with the Worm-gear 13; the spur-gears 17 adjustably mounted near the ends of the shaft 15; the standards 4, 4 screw-threaded at their lower ends and secured in the radial slots 3, 3 of said table 1 by the clamping-nuts 5, 5 to render said standards both vertically and radially adjustable with relation to said slotted table 1 and the centrally-disposed standard i9 the shafts 22, 28 and 30 Opera tively connected to said spur-gears 17 5 the universal joint 29, connecting the shafts 28 and 30 the segmental plate 31; the face-plate 34 carried by shaft 22; the eccentric wrist-pin fixed in said face-plate 3a; and the vertical arm 36 connecting the wrist-pin and segmental plate 31, substantially as and for the purpose set forth.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

GUSTAV SOHIFFBAUER.

WVitnesses:

JACOB FRUOG,

ROBERT lVIOCLELLAN. 

